Manali (Himachal) weather in September
September in Manali: sweltering, rainy — not the time — 40°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#7 of 12 months in Manali · #1297 of 1413 destinations to visit in September · comfort 46/100 (tier F)
- Days
- 34°C
- Nights
- 26°C
- Wet days
- 16
- Sun
- 8.9 h
- Humidity
- 75%
- Daylight
- 12 h
Traveller notes on Manali in September
Notes from nearby Chennai (9 km away)
Manali doesn't have its own notes for September yet — these are about Chennai, close enough to share the season.
Regulars call September the better half of a two-month stretch, more pleasant than August though still hot and humid, with the southwest monsoon rain arriving as sporadic few-minute showers rather than the continuous rain of a proper wet month. Our row backs the transitional read - 34.7C reading as a real 40C at 75.5 percent humidity, with 104.5mm across 16.6 days - frequent but each fall brief. The month that actually soaks this coast has not started yet: the northeast monsoon, which brings most of Tamil Nadu's annual rain, sets in around the 20th of October and intensifies from there. The sea is 29.5C. The record: 8.8 hours of sun, a 17.2 kph wind and AQI 66.
Add your own note from Manali's card on the map.
Manali climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Manali in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyKullu apple harvest, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Manali's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherManali's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Manali in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Rohtang Pass season
1 May – 15 Nov · usuallyTrail seasonThe pass is open from about May to November and going up needs an online permit, capped daily and gone in the season. Since the tunnel opened underneath it, Lahaul is reachable all year and Rohtang is the scenic option rather than the only one. Source ↗
- Season
Landslides on the valley road
1 Jul – 15 Sep · usuallyLandslide seasonClosuresThe Beas runs high and the highway down to Kullu and Mandi loses sections most seasons, sometimes for days. Hotels are cheap and half empty, and the getting out is the part that is not guaranteed.
- Nature
Kullu apple harvest
15 Aug – 15 Oct · usuallyCrowdedThe valley's apples come down in trucks for two months and every road out is behind one of them. Orchard work is the local economy here; the fruit stands on the highway are only the visible part of it.
Nearby, and something's on
Within 300 km of Manali — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Manali?
Manali in September — FAQ
- Is September a good time to visit Manali?
- September in Manali: sweltering, rainy — not the time — 40°C afternoons. It ranks #7 of 12 months for Manali on SeasonMap's comfort score (46/100).
- What is the weather like in Manali in September?
- In September, Manali averages a daily high of 34.4°C and a low of 25.6°C, with about 101.2 mm of rain over roughly 15.9 rainy days.
- What is the air quality in Manali in September?
- Manali has a mean US Air Quality Index of about 66 in September.
Within 300 km: Bengaluru's Ganesha Chaturthi around 25 Aug – 20 Sep, and Chennai's Vinayaka Chaturthi around 20 Aug – 25 Sep.